Can Asphalt Shingles last long in Coastal BC? How long do they last

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September 29, 2026

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Can Asphalt Shingles last long in Coastal BC? How long do they last

Asphalt shingles are versatile in design, providing flexibility for the house owner to decide on the patterns based on their preference. They are manufactured from durable components that give the shingles 15 or 50 years of effective functionality. They can withstand high UV radiation; they are heavier, hence can withstand harsh winds or storms; and they can withstand different temperatures.

 

Not all asphalt shingles you buy provide these impressive attributes; some are poorly manufactured, hence poor functionality, whilst some are misinstalled, consequently leading to poor functionality and a shorter lifespan. The trick to getting the premium asphalt shingles lifespan in Vancouver is understanding the qualities of premium asphalt shingles and how you can ensure they last long, and this blog has got you covered with the information that you need to know. 

 

The types of shingles you can opt for 

Dimensional (architectural) shingles: Last for 20 to 30 years. They are designed with extra thickness, and they are textured. 

Luxury (designer) shingles: They last for around 20 to 50 years; they mimic natural wood or soil. 

3-tab shingles: They effectively function for around 15 to 20 years 

What you need to look out for when buying premium quality

The most important aspect that determines a long lifespan for asphalt shingles is their quality. High-quality premium shingles have qualities that you can look out for, and the same applies to poor-quality shingles, which are characterized by their loose surface granules, low asphalt and excessive mineral fillers. Here is what you can look out for when buying asphalt shingles;

Class A fire rating: The shingles should have an A fire rating, meaning that they have a high level of fire protection. 

Multi-layered build: Premium quality asphalt shingles should have heavy layers of fiberglass mats and asphalt coatings.

High wind resistance: Premium quality asphalt shingles are also rated F or H, meaning that they have high resistance, as they have self-sealing adhesive strips. 

Algae resistant: The shingles are also composed of zinc or copper granules, which prevent the accumulation of algae and mold. 

Strong warranties: Premium manufactured asphalt shingles have a longer warranty due to the composition of the shingles. 

Dimensional design: Premium asphalt shingles mimic wood shakes, deep shadows and natural colour blends.

The common misconceptions about asphalt shingles 

All asphalt shingles are the same: they are all composed and designed differently; as such, their lifespan differs.

Granule loss entails that the roof is failing: Newly installed asphalt shingles can have light loose granules, which is okay, but heavy loss of granules is a red flag. 

Asphalt shingles are mainly for low-slope roofs: they are made for a range of structural designs ranging from basic to complex. 

What causes degradation of the asphalt shingles?

Poor attic ventilation

Poor ventilated attics always have a way to cook problems to the structure of the building especially the roof. Poor circulation of air traps heat, which starts to affect the asphalt shingles from the inside out, leading to blistering, curling and cracking. 

Harsh climate and weather 

Premium asphalt shingles are designed to last long, but as soon as they are exposed to the weather. They experience gradual degradation due to the climate, such as consistent exposure to UV radiation or thermal cycling, as well as severe weather changes such as harsh winds or storms. 

Improper installation 

Poorly installed shingles always cost a lot in the future. You can tell that the asphalt shingles are poorly installed by noticing the misaligned rows, missing or damaged flashing, as well as improper nail placement. This leads to a shortened lifespan, quick leaks, structural rot, and so much more. 

Organic growth and moisture 

Prolonged neglection of cleaning the asphalt shingles and other climate factors can cause the build up of mold and algae which traps moisture on the surface. The moss digs into the shingles, causing them to lift and leading to loss of granules, which accelerates degradation. 

How can I ensure that they last long? 

After investing in premium asphalt shingles and the best roofing services, the next step is to conduct regular maintenance. This is what you can do to ensure they last long;

Remove debris: The roof can have an accumulation of dust, leaves or twigs, which have to be cleared out to prevent trapping moisture.

Check the roof twice a year: The roof requires consistent inspections, especially when the seasons have changed, so that you can check for any damage.

Ensure proper ventilation: The attic should be well ventilated by ensuring a balance between the exhaust, placing intake vents or using rafter baffles. 

Treat moss and algae: You can gently clean the roof to remove algae and mold to prevent root growth, which can damage the shingles. 

Final thoughts 

Your asphalt shingles are meant to last you a long period of time, offering effective functionality and impressive design, and most importantly, efficient protection against different types of weather and climate conditions. You can select your preferred asphalt shingles based on the design, the lifespan and what fits in your budget. In order to ensure that you have long-lasting functionality, you can trust Mainstreet Roofing Ltd to provide premium services by offering the best asphalt shingle and installation services for efficient asphalt shingles with a long lifespan in Vancouver and Surrey. 

FAQ’s 

What do I do when my asphalt shingles start to wear out?

The first thing would be an inspection to check what is causing the degradation and fix it, then conduct a roof replacement. 

What materials are needed to prepare the roof for asphalt shingles installation? 

You will need roofing underlayment, ice and water shield, drip edge, and start strips. 

What do I do if the attic has poor ventilation?

You can ensure that it has a good vent system and seal the air leaks. 

What kind of climate is best for the asphalt shingles?

They are best for moderate climates that have moderate seasonal variations. 

Can I install asphalt shingles on any type of designs?

Asphalt shingles have angle limitations and strict slope requirements; as such, they cannot be installed on any type of design.